117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/* $NetBSD: memc_3max.c,v 1.11 2000/01/10 03:24:40 simonb Exp $ */
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/*
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* Copyright (c) 1998 Jonathan Stone. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jonathan Stone for
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* the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: memc_3max.c,v 1.11 2000/01/10 03:24:40 simonb Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <machine/locore.h> /* wbflush() */
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#include <pmax/pmax/kn02.h> /* error-register defs copied into kn03.h */
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#include <pmax/pmax/memc.h>
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/*
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* the 3max and 3maxplus have compatible memory subsystems;
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* we handle them both here.
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*/
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void
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dec_mtasic_err(erradr, errsyn, bnk32m)
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u_int32_t erradr, errsyn, bnk32m;
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{
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u_int32_t physadr;
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int module;
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if (!(erradr & KN02_ERR_VALID))
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return;
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/* extract the physical word address and compensate for pipelining */
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physadr = erradr & KN02_ERR_ADDRESS;
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if (!(erradr & KN02_ERR_WRITE))
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physadr = (physadr & ~0xfff) | ((physadr & 0xfff) - 5);
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physadr <<= 2;
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printf("%s memory %s %s error at 0x%08x",
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(erradr & KN02_ERR_CPU) ? "CPU" : "DMA",
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(erradr & KN02_ERR_WRITE) ? "write" : "read",
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(erradr & KN02_ERR_ECCERR) ? "ECC" : "timeout",
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physadr);
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if (physadr <= ctob(physmem)) {
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if (bnk32m != 0) /* 32MB modules? */
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module = physadr / ( 32 * 1024 * 1024);
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else
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module = physadr / ( 8 * 1024 * 1024);
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printf(" module %d", module);
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}
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else {
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/* ECC error didn't occur in RAM */
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printf(" (no RAM)");
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}
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printf("\n");
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if (erradr & KN02_ERR_ECCERR) {
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u_int32_t errsyn_value = *(u_int32_t *)errsyn;
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*(u_int32_t *)errsyn = 0;
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wbflush();
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printf(" ECC 0x%08x\n", errsyn_value);
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/* check for a corrected, single bit, read error */
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if (!(erradr & KN02_ERR_WRITE)) {
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if (physadr & 0x4) {
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/* check high word */
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if (errsyn_value & KN02_ECC_SNGHI)
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return;
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} else {
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/* check low word */
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if (errsyn_value & KN02_ECC_SNGLO)
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return;
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}
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}
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printf("\n");
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}
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else
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printf("\n");
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panic("panic(\"Mem error interrupt\");\n");
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}
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/*
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* Xxx noncontig memory probing with mixed-sized memory boards
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* XXX on 3max (kn02) or 3maxplus (kn03) belongs here.
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*/
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/*
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* Xxx any support for NVRAM (PrestoServe) modules in
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* XXX on 3max (kn02) or 3maxplus (kn03) memory slots probably belongs here,
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* since we need to not probe it as normal RAM.
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*/
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